* {
    margin: 0;
    padding: 0;
}

body,
html,
#app {
    width: 100%;
    height: 100%;
    background-color: #F6F7F9;
}

ul,
ol {
    list-style: none;
}

a {
    text-decoration: none;
}

img {
    display: block;
}


/* 版心 */

.main {
    min-width: 320px;
    max-width: 750px;
    margin: 0 auto;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: normal;
}